FR2524457A1 - Procede d'obtention de l'acide phosphorique d'extraction - Google Patents
Procede d'obtention de l'acide phosphorique d'extraction Download PDFInfo
- Publication number
- FR2524457A1 FR2524457A1 FR8205764A FR8205764A FR2524457A1 FR 2524457 A1 FR2524457 A1 FR 2524457A1 FR 8205764 A FR8205764 A FR 8205764A FR 8205764 A FR8205764 A FR 8205764A FR 2524457 A1 FR2524457 A1 FR 2524457A1
- Authority
- FR
- France
- Prior art keywords
- sep
- phosphoric acid
- air
- pulp
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims abstract description 132
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 41
- 230000008569 process Effects 0.000 title claims abstract description 34
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 93
- 235000011007 phosphoric acid Nutrition 0.000 claims abstract description 68
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 24
- 238000002425 crystallisation Methods 0.000 claims abstract description 16
- 150000003016 phosphoric acids Chemical class 0.000 claims abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 38
- 238000000605 extraction Methods 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 15
- 230000008025 crystallization Effects 0.000 claims description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 11
- 239000011575 calcium Substances 0.000 claims description 11
- 229910052791 calcium Inorganic materials 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 5
- 239000001506 calcium phosphate Substances 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910000150 monocalcium phosphate Inorganic materials 0.000 claims description 5
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 5
- 235000011132 calcium sulphate Nutrition 0.000 abstract description 36
- 239000001175 calcium sulphate Substances 0.000 abstract description 22
- 235000011149 sulphuric acid Nutrition 0.000 abstract description 7
- 229910019142 PO4 Inorganic materials 0.000 abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 5
- 239000010452 phosphate Substances 0.000 abstract description 5
- 239000003337 fertilizer Substances 0.000 abstract description 2
- 239000007858 starting material Substances 0.000 abstract 1
- 239000003570 air Substances 0.000 description 33
- 239000013078 crystal Substances 0.000 description 26
- 239000000725 suspension Substances 0.000 description 20
- 229910052925 anhydrite Inorganic materials 0.000 description 13
- 239000007788 liquid Substances 0.000 description 12
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 8
- 230000008030 elimination Effects 0.000 description 7
- 238000003379 elimination reaction Methods 0.000 description 7
- 229910052586 apatite Inorganic materials 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 6
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 150000004683 dihydrates Chemical class 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002367 phosphate rock Substances 0.000 description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 3
- ZHZFKLKREFECML-UHFFFAOYSA-L calcium;sulfate;hydrate Chemical compound O.[Ca+2].[O-]S([O-])(=O)=O ZHZFKLKREFECML-UHFFFAOYSA-L 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- RVPHBKHKFNGAOI-UHFFFAOYSA-L calcium;carbonate;dihydrate Chemical compound O.O.[Ca+2].[O-]C([O-])=O RVPHBKHKFNGAOI-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- QVLTXCYWHPZMCA-UHFFFAOYSA-N po4-po4 Chemical compound OP(O)(O)=O.OP(O)(O)=O QVLTXCYWHPZMCA-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000069 prophylactic effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
- C01B25/226—Hemihydrate process
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
- C01B25/225—Dihydrate process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paper (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE0/207723A BE892717A (fr) | 1982-03-31 | 1982-03-31 | Procede d'obtention de l'acide phosphorique d'extraction |
| FR8205764A FR2524457A1 (fr) | 1982-03-31 | 1982-04-02 | Procede d'obtention de l'acide phosphorique d'extraction |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE892717 | 1982-03-31 | ||
| BE0/207723A BE892717A (fr) | 1982-03-31 | 1982-03-31 | Procede d'obtention de l'acide phosphorique d'extraction |
| FR8205764A FR2524457A1 (fr) | 1982-03-31 | 1982-04-02 | Procede d'obtention de l'acide phosphorique d'extraction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2524457A1 true FR2524457A1 (fr) | 1983-10-07 |
| FR2524457B1 FR2524457B1 (enExample) | 1984-06-22 |
Family
ID=27158726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8205764A Granted FR2524457A1 (fr) | 1982-03-31 | 1982-04-02 | Procede d'obtention de l'acide phosphorique d'extraction |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE892717A (enExample) |
| FR (1) | FR2524457A1 (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2644767A1 (fr) * | 1989-03-22 | 1990-09-28 | Voskresensky Ni | Dispositif pour le refroidissement d'une masse reactionnelle dans un reacteur de production d'acide phosphorique |
| FR2659954A1 (fr) * | 1990-03-22 | 1991-09-27 | Voskresensky Ni | Procede de preparation d'acide phosphorique. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU582198A1 (ru) * | 1975-08-11 | 1977-11-30 | Предприятие П/Я В-8830 | Способ получени фосфорной кислоты |
-
1982
- 1982-03-31 BE BE0/207723A patent/BE892717A/fr not_active IP Right Cessation
- 1982-04-02 FR FR8205764A patent/FR2524457A1/fr active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU582198A1 (ru) * | 1975-08-11 | 1977-11-30 | Предприятие П/Я В-8830 | Способ получени фосфорной кислоты |
Non-Patent Citations (1)
| Title |
|---|
| DERWENT JAPANESE PATENTS REPORT, semaine A42, section C, 29-11-1978, page 2, Derwent Publications Londres (GB) & SU - A - 582 198 (V.M. BORISOV et al.)(30-11-1977) & CHEMICAL ABSTRACTS, vol.88, 1978, résumé no.91739d * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2644767A1 (fr) * | 1989-03-22 | 1990-09-28 | Voskresensky Ni | Dispositif pour le refroidissement d'une masse reactionnelle dans un reacteur de production d'acide phosphorique |
| FR2659954A1 (fr) * | 1990-03-22 | 1991-09-27 | Voskresensky Ni | Procede de preparation d'acide phosphorique. |
Also Published As
| Publication number | Publication date |
|---|---|
| BE892717A (fr) | 1982-09-30 |
| FR2524457B1 (enExample) | 1984-06-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |